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研究生:張碩傑
研究生(外文):Shuo-Chieh Chang
論文名稱:雷射光斑效應對螢光粉激發白光色彩均勻度表現於雷射白光照明之研究
論文名稱(外文):The effect of laser speckle on phosphor converted white light color uniformity for laser-excited white light application
指導教授:李宗憲李宗憲引用關係
指導教授(外文):Tsung-Xian Lee
口試委員:李宗憲
口試委員(外文):Tsung-Xian Lee
口試日期:2016-07-29
學位類別:碩士
校院名稱:國立臺灣科技大學
系所名稱:色彩與照明科技研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2016
畢業學年度:104
語文別:中文
論文頁數:69
中文關鍵詞:雷射二極體雷射光斑光斑對比度螢光粉色彩均勻性
外文關鍵詞:Laser diodeLaser speckleSpeckle contrastPhosphorsColor uniformity
相關次數:
  • 被引用被引用:0
  • 點閱點閱:329
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  • 下載下載:18
  • 收藏至我的研究室書目清單書目收藏:0
本論文旨在探討雷射激發螢光粉產生白光之光學特性。由於雷射的高同調性,因為干涉而產生的雷射光斑是無法避免的。為了深入雷射光斑對螢光粉激發白光後對色彩均勻度的影響,我們透過實驗與模擬分析,建立雷射光斑與螢光粉光學模型,探討光斑對比度與白光色差在螢光粉表面與透鏡投影後之關係。結果顯示,當雷射的光斑對比度降至10% 以下時,即可產生與完全無光斑之光源相同的色彩表現。
In this thesis, we study the optical characteristics of the phosphor converted white light excited by blue laser light source. Due to the high coherence of the laser light source, laser speckle cause by interference is unavoidable. In order to understand the influence of laser speckle on phosphor converted white light, we did a series of experiments and simulations to accurately build the phosphor and speckle model, and analyzed the relationship between the speckle contrast of laser speckle and the color difference of the white light on the surface of the phosphor and the white light projected on the screen by the collimating lens. The result shows that when the speckle contrast of the laser speckle decrease below 10%, the color performance of the white light excited by speckled light is almost the same as the white light excited by speckle-free light.
中文摘要 i
ABSTRACT ii
誌謝 iii
目錄 iv
圖目錄 vi
表目錄 ix
第1章 緒論 1
1.1 研究背景及動機 1
1.2 論文架構 5
第2章 文獻探討 6
2.1 雷射白光技術 6
2.2 雷射光斑 11
2.2.1 雷射光斑 11
2.2.2 雷射光斑的抑制 14
2.2.3 色彩光斑 18
第3章 雷射光斑與白光色均勻度之量測 19
3.1 雷射光斑對比度之量測 19
3.2 白光色均勻度之量測 24
第4章 雷射光斑與白光色均勻度之模擬 33
4.1 螢光粉模型建立 33
4.1.1 螢光粉散射行為驗證 34
4.1.2 螢光粉激發轉換比例係數驗證 40
4.1.3 總結 46
4.2 雷射光斑對螢光粉激發白光色均勻度表現之模擬 47
4.2.1 雷射光斑模型之建立 47
4.2.2 螢光粉激發白光色彩均勻度模擬分析(藍光SC<0.5) 48
4.2.3 量測與模擬比較分析 56
4.2.4 螢光粉激發白光色彩均勻度模擬分析(藍光SC<0.5) 58
第5章 結論 63
參考文獻 64
中英對照表 68
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